Difficulties encountered in defining the Permian–Triassic boundary in Buntsandstein facies of the western Peritethyan domain based on palynological data

This article compiles and revises all the palynostratigraphical information gathered from sediments of Buntsandstein facies across the western Peritethyan domain. Our aim is to update current knowledge on the Permian–Triassic (P/T) boundary in these materials, which is generally charaterized by very poor taphonomic preservation conditions. As a result, there is a marked shortage of fossils and it is difficult to delimit useful palynostratigraphic assemblages. Nevertheless, by utilizing a new biostratigraphic approach to the entire set of data and assemblages, it is now possible to define time intervals for Buntsandstein facies in this area.